package com.ly.generator.controller;

import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;

import com.ly.common.annotation.Log;
import com.ly.common.core.controller.BaseController;
import com.ly.common.core.domain.AjaxResult;
import com.ly.common.core.page.TableDataInfo;
import com.ly.common.core.text.Convert;
import com.ly.common.enums.BusinessType;
import com.ly.generator.domain.GenTable;
import com.ly.generator.domain.GenTableColumn;
import com.ly.generator.service.IGenTableColumnService;
import com.ly.generator.service.IGenTableService;
import org.apache.commons.io.IOUtils;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * 代码生成 操作处理
 * @author
 */
@RestController
@RequestMapping ("/tool/gen")
public class GenController extends BaseController {

    @Resource
    private IGenTableService genTableService;

    @Resource
    private IGenTableColumnService genTableColumnService;

    /**
     * 查询代码生成列表
     */
    @PreAuthorize ("@ss.hasPermi('tool:gen:list')")
    @GetMapping ("/list")
    public TableDataInfo genList (GenTable genTable) {
        startPage ();
        List<GenTable> list = genTableService.selectGenTableList ( genTable );
        return getDataTable ( list );
    }

    /**
     * 修改代码生成业务
     */
    @PreAuthorize ("@ss.hasPermi('tool:gen:query')")
    @GetMapping (value = "/{talbleId}")
    public AjaxResult getInfo (@PathVariable Long talbleId) {
        GenTable table = genTableService.selectGenTableById ( talbleId );
        List<GenTableColumn> list = genTableColumnService.selectGenTableColumnListByTableId ( talbleId );
        Map<String, Object> map = new HashMap<String, Object> ();
        map.put ( "info", table );
        map.put ( "rows", list );
        return AjaxResult.success ( map );
    }

    /**
     * 查询数据库列表
     */
    @PreAuthorize ("@ss.hasPermi('tool:gen:list')")
    @GetMapping ("/db/list")
    public TableDataInfo dataList (GenTable genTable) {
        startPage ();
        List<GenTable> list = genTableService.selectDbTableList ( genTable );
        return getDataTable ( list );
    }

    /**
     * 查询数据表字段列表
     */
    @PreAuthorize ("@ss.hasPermi('tool:gen:list')")
    @GetMapping (value = "/column/{talbleId}")
    public TableDataInfo columnList (Long tableId) {
        TableDataInfo dataInfo = new TableDataInfo ();
        List<GenTableColumn> list = genTableColumnService.selectGenTableColumnListByTableId ( tableId );
        dataInfo.setRows ( list );
        dataInfo.setTotal ( list.size () );
        return dataInfo;
    }

    /**
     * 导入表结构（保存）
     */
    @PreAuthorize ("@ss.hasPermi('tool:gen:list')")
    @Log (title = "代码生成", businessType = BusinessType.IMPORT)
    @PostMapping ("/importTable")
    public AjaxResult importTableSave (String tables) {
        String[] tableNames = Convert.toStrArray ( tables );
        // 查询表信息
        List<GenTable> tableList = genTableService.selectDbTableListByNames ( tableNames );
        genTableService.importGenTable ( tableList );
        return AjaxResult.success ();
    }

    /**
     * 修改保存代码生成业务
     */
    @PreAuthorize ("@ss.hasPermi('tool:gen:edit')")
    @Log (title = "代码生成", businessType = BusinessType.UPDATE)
    @PutMapping
    public AjaxResult editSave (@Validated @RequestBody GenTable genTable) {
        genTableService.validateEdit ( genTable );
        genTableService.updateGenTable ( genTable );
        return AjaxResult.success ();
    }

    /**
     * 删除代码生成
     */
    @PreAuthorize ("@ss.hasPermi('tool:gen:remove')")
    @Log (title = "代码生成", businessType = BusinessType.DELETE)
    @DeleteMapping ("/{tableIds}")
    public AjaxResult remove (@PathVariable Long[] tableIds) {
        genTableService.deleteGenTableByIds ( tableIds );
        return AjaxResult.success ();
    }

    /**
     * 预览代码
     */
    @PreAuthorize ("@ss.hasPermi('tool:gen:preview')")
    @GetMapping ("/preview/{tableId}")
    public AjaxResult preview (@PathVariable ("tableId") Long tableId) throws IOException {
        Map<String, String> dataMap = genTableService.previewCode ( tableId );
        return AjaxResult.success ( dataMap );
    }

    /**
     * 生成代码（下载方式）
     */
    @PreAuthorize ("@ss.hasPermi('tool:gen:code')")
    @Log (title = "代码生成", businessType = BusinessType.GENCODE)
    @GetMapping ("/download/{tableName}")
    public void download (HttpServletResponse response, @PathVariable ("tableName") String tableName) throws IOException {
        byte[] data = genTableService.downloadCode ( tableName );
        genCode ( response, data );
    }

    /**
     * 生成代码（自定义路径）
     */
    @PreAuthorize ("@ss.hasPermi('tool:gen:code')")
    @Log (title = "代码生成", businessType = BusinessType.GENCODE)
    @GetMapping ("/genCode/{tableName}")
    public AjaxResult genCode (@PathVariable ("tableName") String tableName) {
        genTableService.generatorCode ( tableName );
        return AjaxResult.success ();
    }

    /**
     * 同步数据库
     */
    @PreAuthorize ("@ss.hasPermi('tool:gen:edit')")
    @Log (title = "代码生成", businessType = BusinessType.UPDATE)
    @GetMapping ("/synchDb/{tableName}")
    public AjaxResult synchDb (@PathVariable ("tableName") String tableName) {
        genTableService.synchDb ( tableName );
        return AjaxResult.success ();
    }

    /**
     * 批量生成代码
     */
    @PreAuthorize ("@ss.hasPermi('tool:gen:code')")
    @Log (title = "代码生成", businessType = BusinessType.GENCODE)
    @GetMapping ("/batchGenCode")
    public void batchGenCode (HttpServletResponse response, String tables) throws IOException {
        String[] tableNames = Convert.toStrArray ( tables );
        byte[] data = genTableService.downloadCode ( tableNames );
        genCode ( response, data );
    }

    /**
     * 生成zip文件
     */
    private void genCode (HttpServletResponse response, byte[] data) throws IOException {
        response.reset ();
        response.addHeader ( "Access-Control-Allow-Origin", "*" );
        response.addHeader ( "Access-Control-Expose-Headers", "Content-Disposition" );
        response.setHeader ( "Content-Disposition", "attachment; filename=\"ruoyi.zip\"" );
        response.addHeader ( "Content-Length", "" + data.length );
        response.setContentType ( "application/octet-stream; charset=UTF-8" );
        IOUtils.write ( data, response.getOutputStream () );
    }
}